Pulp-molding machine.



PATBNTED AUG. 7, 1906.

4 SHEETS-SHEET 1.

1321 6721507 fi. A /M PATENTED AUG. '7, 1906.

G. R. WARD. PULP MOLDING MACHINE. APPLICATION FILED mimze. 1901.

4 SHEETS-SHEET 2.

j hdektor.

PATENTED AUG. 7, 1906.

G. R, WARD. PULP MOLDING MACHINE.

APPLICATION FILED DEC. 26. 1901.

4 sums-6mm a.

//Y Q I PATENTED AUG. 7, 1906. G R WARD PULP MOLDING MACHINE.

APPLICATION FILED DEO.26, 1901.

TS-SHEET 4.

INVENTOR ATTORNEY WITNESSES:

pairs sra gs rarer niece.

GEORGE R. WARD, OF NEW YORK, N. Y., ASSIGNOR, BY

TO THE UNION BAG & PAPER COMPANY, A CORPORATION OF MENTS. NEW JERSEY.

MESNE ASSIGN- PULP-=IWOLDlNG MACE-NE.

Specification of Letters .Eatent.

Patented Aug. 7, 1.906.

.[ all whom it may concern:

Be it known that I, GEORGE R. WARD, a citizen of the United States,'residing at New York, N. Y., have invented certain new and useful Improvements in Pulp-Molding Ma chines, of which the following is a clear, full, and exact description.

My invention relates to a machine for forming articles from a suitable pulp; and my object is toimprove the construction of such machines.

My invention will be defined in the claims.

In the drawings showing the preferred embodiment of my invention, Figure 1 is a plan view; Fig. 2, a side elevation, parts being in section. Fig. 3 is a central sectional view; Fig. 3 a detail sectional view on line as as of Fig. 3. Fig. 4. is a partial section of a modification, parts being omitted; and Fig. is a section on line y y of Fig. 4.

In the above preferred embodiment, 1 is the base on which the parts are mounted, and 2 is a support extending therefrom.

3 is a traveling mold-face, preferably perforated, as shown. faceyl have in this embodiment provided a vertical shaft 4, which may be rotated intermittently or step by step by means of a roller.

5 on wheel 6, which roller enters slots in a star-wheel 7, fixed to the shaft, as shown in Figs. 1 and 2. low circular head 8, on which the mold-face 3 is carried by a hollow extension 9, communieating with both the circular head and the perforated mold-face.

In order to apply a layer of pulp to the mold-face, 1 preferably provide a stationary vat 10, containing a suitable pulp, as shown. In the present embodiment I have provided an auxiliary pulp-holder 11 in said vat, which normally stands below the level of the 'pulp in the vat and is raised up to said mold-face, as shown in dotted lines in Fig. 3, carrying with it a quantity of pulp. The mold-face enters the pulp-holder 11', as shown in dotted lines in Fig. 3.

13 is a hollow shaft at all times in communication with hollow head 8, as shown in Fig.

3, by which the air may be exhausted to produce a suction through the perforated moldpump 14 or other suitable device.

The auxiliary pulp-holder 11 is reciprocated by a plunger 15, carried on a sleeve 16,

In order to move this device 14.

The shaft 4 may carry a holhaving pins 17 thereon. A cam-wheel 18, fixed on the shaft 19, engages a roller 20 on lever 21 and rocks the same on pins 22, which lie in a slot in shaft 19, as shown in Fig. 2. The rock-lever 21 has two legs which cmbrace sleeve 16 and lie beneath pins 17, by which the sleeve and parts carried by it are raised to the proper height. The slotted wheel 7 then rotates the mold-face 3 a quarter-turn, and as 1 preferably provide on head 8 a number of mold-faces similar to the face 3 (four in the present embodiment) a new face is brought into the position shownin Fig. 2. A second mold-face 23, (shown in dotted lines in Fig. 2,) carried by sleeve 16, may be provided, which registers with mold-face 3 in its new position and by which the layer of pulp on the mold-face may be compressed to form the article at the same time that a layer of pulp is applied to the succeeding face. The sleeve 16 then sinks again, and the starwheel turns head 8 another quarter-turn, bringing face 3 into the position shown at the right of the figures.

24 represents spring-pressed valve-stems carrying valves to close or open communication between the mold-faces and the suction A 25 is a cam-ring attached to hollow shaft 13 for regulating the action of these valves.

26, Fig. 3, is a lever fixed to hollow shaft or pipe 13 and having a roller-stud 27 sliding in a cam-groove 28 in the lower face of a wheel 29, by which when. the face 3 arrives at the point shown at the left of the figures the camring 25 is slightly moved from right to left in Fig. 2 and depresses the valve at the left of the figure from the closed position shown to the open position shown in Fig. 3. T he valve remains open until just before the face reaches the position at the right of the figures, when the cut-away portion of the ring, Fig. 2, releases the stem and allows the valve to close.

30 30 are hollow pipes leading to and carried around. each of the perforated faces and which successively register with an opening 31 ,in an extension 32 from pipe 13 (see Fig. 3)

when the cam-ring is given the slight movement above described.

between pipes 13 and 32. This pipe 32 com municates with a compression-pump 33' or other suitable device, by'which a blast of air is blown through the mold-face and the 32 is a plug preventing communication formed article loosened from the mold-face or, if preferred, blown off from the mold-face. In Fig. 4 I have shown an alternative form of construction, the actuating mechanism being omitted." I have provided a reticulated mold-face 34, which may both supply the pulp to the mold-face 3, and also partially form the article, if preferred. .The plunger 36 may carry a reticulated basket 37 and may slide on a fixed tube 38, *com-' municating with the suction device 14. This pipe is closed by valve 39 until the finger 40 strikes the lower end of the valve-stem 41'as the plunger" rises, through basket 37 of the pipe) until after the basket or face has been. pressed against the face 3 and has moved downward away from the same to loosen or remove the articlefrom the moldface. This basket 37 therefore acts asa receiving-faee for the plate, and when said face is pressed against the pulp-dish on theface 3 thus applying suction I and suction is a plied through the receivingface 37 the dis will be removed from the face 3 withoutdamaging the dish. Faces 3 and 37 are shown as 'nestingwith each other, the face 37 being a counterpart of face 3.

' I am aware that many variations may be -made from the'constructionabove described without departing from 'thescope of my invention as claimed, and I therefore do not desire to belimited to the embodimentsherecause'said *faces '-,to 'bemoved together, one of 'saidfaces being perforated, and means to' ,causea'draft 0 air topass through-said perfora'ted'face when'said faces are in'contact,

to remove the article from said first f ace'and transfer it to said second face.

' "2. In a pul '-machine in combination atravlingrnol -face and means to move the same in a'substantiall-y horizontal plane, a

, receptacle containing a suitable pulp, means tomovesald receptacle up to said mold-face to supply a layer of. face nesting "with sai ulp thereto, a second tocause said faces to=move together, one of -said faces being perforatedfand means -'to cause fa'draft'of. air to passthrough said p BI". I

traveling mol -face, means to; move "the fdrated face when said faces are in contact to remove the articlef'rom'said first face and transfer it to said second face.

3'. Ina pulp-machine in combination aperforated-mold face, a ulp 'rec'eptacle or p containing a suitable pu p, means to'auto erratically give a'relative movementbetw'e'en saidface and receptacle to move the same (which is then above end' move said face latera face to supp toward each other and cause said face to rela' tively dip into and rise from the pulp therein, a suction device to apply suction through said face when in said pulp whereby said face receives alayer of pulp, means to move said face and receptacle laterally of each other, a

receiving-face at all times outside of the pulp in said receptacle, means to move said faces together, and means to cause a draft of air through one of said faces to transfer the article to said receiving-face.

4. In a pulp-machine in combination, a perforated mold-face, a pulp-receptacle for containing a. suitable pulp, means to automatically give a relative movement between said face and receptacleto move the same to- Ward each other and cause said face'to relatively dip into and rise from the pulp therein, a suction device to apply suction through said face when in said pulp whereby said face receives a layer of pulp, means to move said face and receptacle laterally of each other, a' erforated receiving-face at all times outsi e of the pulp in'said receptacle, means to move said faces together, and means toeause a draft'of air through said receiving-face to transfer'the article to said receiving-face.

5. In a =pulp-machine in combination, a perforated traveling mold-face, a pulp-receptacle for containing 'a suitable pulp, means'to automatically give a relative movement between said face and receptacle to move the same toward each other and cause said face to relatively dip into and rise'g-from'the pulp therein, a suction device to apply suction through said face when in said pulp whereby said face i-receives a layer of pul means to and in'a substantially horizontal plane, a receiving-face at alltimes outside-of the pulp in getheryand means to cause a draft ofair through one of saidfaces to transfer the article'to said receiving-face.

6. In -a pul -machine in combination a traveling 'm'ol -face, means to move the ly of sai receptacle said-receptacle, meansto move said-facestosame, a relatively stationarypulp-vat and an auxiliarygiulp-holder therein, and means to ulp holder to move up to said a-layer' of pulp thereto. '7. In a [pul traveling 'niol cause" sai -fac'e, means to rotate the .-same,farelati-vel-y stationary pulp-vat and an auxiliarwpulp-holder therein, and means to cause sai ulp-holder to move up -to said faceto supp y a layer of pulp thereto.

8. In a pul -machine in combination a .same, a relatively stationarypulp-vat and an T15 -machine in combination a pulp-vat,

ea'zree ply suction through the same, means to move.

said face, a relativel stationary pulp-vat and an auxiliary u p-holder therein, and means to cause sai pulp-holder to move u to said face to supply a layer of pulp thereto. 11. In a pulp-machine in combination a perforated traveling mold-face and means to apply suction through said face, means to move the same, a relativel stationary pulpvat and an auxiliary pu p-holder therein,

means to cause said pulp-holder to move up to said face to supply a layer of pulp thereto, a second mold-face located at a point farther on in the'travel of said first face, means to press said faces together to form said article, means to separate said faces, and a device to blow a current of air through said perforated face to-loosen the article from said face.

12. In a pul -machine in combination a mold-face, a re atively stationary pulp-vat and an auxiliary pulp-holder therein, means to cause said auxiliary pulp-holder to move out of said vat up to said face to supply a layier of pulp thereto, a second moldface, an form said articles. I

13. In a pulp-machine in combination a a substantially vertical shaft, same intermittently, a said shaft and adapted means to rotate the mold-face carried by to stop over said vat, a reci rocating plunger in said vat carrying an auxi iary ulp-holder, means to raise said plunger and cause said mold-face to enter said pulp-holder, and means to cause a layer of pulp to adhere to said mold-face. 4

14. In a pulp-machine in combination a pulp-vat, a substantially vertical shaft, means to rotate the same intermittently, a mold-face carried by said shaft and adapted to stop over said'vat, a reci rocating plunger in said vat carrying an auxi 1ary(pulp-holder, means to raise said plunger an 'cause said mold-face to enter said pulp-holder, means .to cause a layer of pulp to adhere to said mold-face, and a second mold-face ada ted to be pressed against it to form said artic e.

15. In a pu p-machine in combination a pulp-vat, a substantially vertical shaft, means to rotate the same intermittently, a

mold-face carried by said shaft and adapted to stop over said vat, a reci rocating plunger insaid'vat carrying'an auxi iary ulp-holder,

means to raise said plunger an cause said mold-face to enter said pulp-holdenmeans to cause a layer of'pulp to adhere to sand.

means to press said faces together to mold-face, means to stop said mold-face at a point farther on in its travel, and a second mold-face adapted to be pressed against it to form said article.

16. In a pulp-machine in combination a substantially vertical shaft and means to rotate the same, a plurality of perforated. moldfaces carried thereby and-means to create a suction through said faces, means to supply a layer of pulp to said faces in succession, a valve for each mold-face controlling the suction therethrough, and a cam device con trolling said valves.

17. In a pulp-machine in combination a substantially vertical shaft and means t rotate the same, a plurality of perforated mold.-

faces carried thereby and means to create a suction through said faces, means to supply a layer of pulp to said faces in succession, a valve for each mold-face controlling the suction therethrou h, a cam device controlling said valves, a re atively stationary mold-face adapted to register With said mold-faces in succession, and means to press said relatively stationary face against said other faces in succession to form said article.

18. In a pulp-machine in combination a substantially vertical shaft and means to rotate the same, a plurality of perforated moldfaces carried thereby and means to create suction throu h said faces, a pulp-vat and means to supp y a layer of pulp therefrom to said faces 1n succession, a valve 'for each mold-face controlling the suction therethrough,'a cam device controlling said valves, a relatively stationary mold-face adapted to register With said mold-faces in succession, and means to press said relatively stationary face against said other faces in succession .to form said article.

19. In a pulp-machine in combination, a traveling perforated mold-face, and means to cause the same to travel in a substantially horizontal plane, a receptacle for containing a suitable pulp, said receptacle being stationary relative to the horizontal direction of travel of said face, means to dip said face in. the pulp therein, and a suction device to apply suction through said perforated face whereby said face receives a layer of pulp, a second mold-face nesting with said first face and located beyond and outside of said receptacle and relatively stationary with respect to the travel of said first face and adapted to register With said first face, and ,means to press said faces together to form the article.

20. In a pulp-machine in combination a traveling perforated mold-face, and means to cause the same to travel in a substantially horizontal plane, a receptacle for containing a suitable pulp, said receptacle being stationary relative to the horizontal direction of travel of said face, means to dip said face in the pulp therein, and a suction device to apply suction through said perforated face IEO ' perforated mold-face,

containing a'suitable pup, means to auto-' matically give. a relative movement between whereby said face receives a layer of pulp, a second mold-face located beyond and outside of said receptacle and relatively stationary with respect to the travel of said first face and adapted 'to register with said first face, and means to press said faces together to form the article and separate said faces without removing the article from said first face, a receiving-face, and means to move said first face and said receiving-face together, and means-to apply a draft of air through one of said faces to transfer-said article to said receiving-face,

21. In a pulp-machine in combination, a

erforatedmold-face, means to supply a' ayer of pulp thereto, a suction device t1 apply suction through said face whereby it .receives and retains a layer of pulp thereon, a second mold-face, means to press said faces together and separate the same to form the article Without removing said article from said first face, a receiving-face and means to cause it and said first face to bemoved against each other, and means to apply a draft of air through one of saidfaces to transfer' 'said article to said receiving-face. 22. In a pul -machine incombination, a erforated mo d-face, means to supply a ayer of pulp thereto, a suction device to apply suction thr'ough'said face wherebyit receives and retains a layerof pulp thereon, a second mold-face, means to press said faces. together and separate the same to form the article without removing said article from said first face, a perforated receiving-face,

and means to-cause it and said first face to be moved together, and. means to applyairsuction through said receiving-face to transfer said article to said *reeeivingface.

23. In a p'ulp-machine in combination, a a ul-p-sreceptacle for said face and receptacle to move the same toward each other and relatively 1;). said face into and cause it to rise fro said pulp, means to cause suction thro h said face when in said pulp whereby said face receives a layer of pulp, means to move said face'a ld receptacle laterally of'each other, a relatively stationary reccivmg-fa'ce located outside of said receptacle and adapted to-nestwith'said' first face, means to move said faces. together, I and means to cause a draft of air through-oneof said vfaces to transfer said article to, said receiving-face.

24. Ina pul -machine in combination a perforated mol -face, a ulp-receptaclefor containing asuitablepu p,- means to auto- .into and cause it to rise from t maticall'y'give a relative movement between said face-and receptacle tomove thesame to ward each other and relativel dip said'face lie pulp, means to cause suction through'saidface when in said pulp whereby said face receives alayer of pulp, meansto' relatively move said. face and receptacle laterally of each other, a relatively stationary mold-face" located outside of said receptacle: and adapted to nest with said first face, means to automatically press said faces together, andmean's to transfer paid article to said relatively stationary 8,06. v- 25; In-atpulp-machine in combination, a perforated mold-face, a pulp-receptacle for containing asuitable pulp, means to relatively dip said face into and ,causeit to rise from the pulp in said receptaclegand a suction device to appl suction-throuh said face when in said pulp whereby 's'aid i ace re- I ceives a layer of pulp, means aut I 8tically move said face and rece taclelaterally of each ashe -a second mold-face located. outside of said'receptacle-and shaped to conform to thelarticle' to be formed; means to automaticallyipres's' said faces together to form said article and se arate thesamewithout removing-*saidartic e from said firstface, 1 a receivingface-for said article, and meansto i; move said first face and said receiving-face 9%: together," and: means to apply a draft of air through one ofsaid last two faces to, transfer;,' 1 said' article to said receiving-faces V 26.- In a pulp-molding machine combination, adevicetocontain pulp, amold'com 5 sisting of an upper and al'ower molding-face adapted'to be pressed together, "said upper face being perforated, means tocause: a, relative movement'betweenlsaid device to .cony tain ulp and'said upper facetoirnmerse ro; saidace inwthe'pulp and freei i't therefrom, said '11 per face bei-ng heldsubstantially hori 1 zonta duringsaid relativemovem fa; suc tion devicezwhi'oli applies. suctio through-j said upper face when so ima ed; and means to press saidjfaces togetherjto; form sisting of an upper and a .loWer rnokl-in%-face adapted to be re'ssedf together, one o faces. being pe orated', means to saidfacein the archessuctiondevice "10 applies euctionkthrcug said face "when sofimmersedf means; press said faces together to form;' thearticlje 128. In a pulp-molding-machine'in c'pm'bi nation, a rotatmfg moldcarrieri-'havi there on aj-succession of perforated: msld aces pulp-'holdingjreceptacle "and means to Jeans said faces l'lObdiPlfl succession into'thp'f therein, a .reciprocatable-'mold face. 'lecate' outsidesaidlreceptacle and adapted-teena e with said other faces in successiomandmeans to press saidreciprocatin -,faee'against said I other faces to compress t epulp. thereon; Y

" 29. In a pulp-molding machine in-combination, a rotating mold-carrierhavingthere 1 0 on a succession of perforated mold-faces, means to rotate thesame intermittently, a pulp-holding receptacle and means to cause said faces to dip in succession into the pulp therein, means to apply suction through said faces in succession, a reciprocatable moldface located outside said receptacle and adapted to nest with said other faces in succession when said carrier is at rest, and

means to press said reciprocating face against 10 said other faces to compress the pulp thereon. Signed at New York, N. Y., this17th day of December, 1901.

GEORGE R. WARD.

Witnesses: V

EMERSON REDWELL, THOMAS F. HASTINGS. 

